AIDS Dementia ComplexDeliriumDelirium, Dementia, Amnestic, Cognitive DisordersCognition DisordersDementiaNeuropsychological TestsAmnesiaHistamine H3 AntagonistsCognitionHIV InfectionsBrainNervous System DiseasesReceptors, Histamine H3Mild Cognitive ImpairmentAlzheimer DiseaseMemory DisordersDementia, VascularAsymptomatic DiseasesExecutive FunctionNootropic AgentsHIV-1Anti-Retroviral AgentsBipolar DisorderMemoryAnti-HIV Agentstat Gene Products, Human Immunodeficiency VirusHistamine AntagonistsAntiretroviral Therapy, Highly ActiveNeuronsMental DisordersHIVActivities of Daily LivingMood DisordersPsychiatric Status Rating ScalesAgingMicrogliaAnxiety DisordersMaze LearningAlcohol Withdrawal DeliriumAnalysis of VarianceDiagnostic and Statistical Manual of Mental DisordersCentral Nervous SystemHippocampusCohort StudiesDrug DiscoveryMagnetic Resonance ImagingAtrophyLearningHIV Envelope Protein gp120AstrocytesViral LoadPsychotic DisordersSeverity of Illness IndexSchizophreniaAttention Deficit Disorder with HyperactivityDepressive Disorder, MajorDepressive DisorderSchizophrenic PsychologyMotor ActivityRisk FactorsDementia, Multi-InfarctVerbal LearningLongitudinal StudiesApolipoprotein E4Obsessive-Compulsive DisorderSubstance-Related DisordersProspective StudiesAutistic DisorderCells, CulturedLewy Body DiseaseGeriatric AssessmentStress Disorders, Post-TraumaticWord Association TestsMental RecallAttentionCase-Control StudiesDisease ProgressionMental Status SchedulePsychomotor AgitationMacrophagesFollow-Up StudiesIntelligence TestsLearning DisordersPsychomotor PerformancePhobic DisordersConfusionAntipsychotic AgentsComorbidityChild Development Disorders, PervasiveBrain MappingMemory, Short-TermImage Processing, Computer-AssistedConduct DisorderTemporal LobeMemory, EpisodicAge FactorsTime FactorsPredictive Value of TestsReproducibility of ResultsTrail Making Test